CN209946303U - Discharge detector - Google Patents
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- CN209946303U CN209946303U CN201920182662.3U CN201920182662U CN209946303U CN 209946303 U CN209946303 U CN 209946303U CN 201920182662 U CN201920182662 U CN 201920182662U CN 209946303 U CN209946303 U CN 209946303U
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Abstract
The application relates to a discharge detector, which comprises a light-emitting probe, a control device, an information processing device and an information transmission device. The light emitting probe is used for generating feedback information. The control device is electrically connected and in signal connection with the light-emitting probe and is used for controlling the light-emitting probe to operate. The information processing device is used for generating fault information after analyzing and processing the feedback information. The information transmission device is in signal connection with the light-emitting probe and the information processing device and is used for transmitting feedback information and outputting fault information. The control device that this application provided can control the light emitting probe on line and operate. And the information transmission device can transmit the fault information to the terminal equipment for monitoring personnel to check. The application provides a discharge detector can solve the problem that traditional scheme can't on-line measuring and monitoring to the operation fault detection of intermediate head exists.
Description
Technical Field
The application relates to the field of power equipment monitoring, in particular to a discharge detector.
Background
Operational fault detection is critical to the power industry. With the development of the technology, the operation fault detection means is gradually upgraded, and the precision is gradually improved. The structure of the intermediate joint is complicated, the production process is more, the installation environment is not fixed, the skill of installation personnel is good and uneven, the installation procedures are more, so the quality of the intermediate joint is difficult to ensure, and in addition, the connection position of two cables is arranged in the intermediate joint, and compared with other positions of the cables, an electromagnetic field is obviously uneven, so the accidents are more easily formed. According to the analysis of the middle joint accident, the formation of the middle joint accident is found, a process from accident potential to fault evolution exists, a discharge phenomenon exists in the process, and the temperature at the middle joint is continuously increased. Therefore, the discharge phenomenon at the middle joint is detected, the early warning effect can be achieved, and accidents are prevented.
At present, the cable operation fault detection technology includes a distributed optical fiber temperature detection technology, a partial discharge online detection technology, an infrared thermal imaging thermal operation fault detection technology, a ground current detection technology, a dielectric loss detection technology and the like. Among them, the partial discharge detection technique is the most dominant and most widely and deeply studied. However, the insulation condition and the partial discharge fault of the existing cable and the cable intermediate joint are detected based on the electric quantity parameter change, and the cable and the intermediate joint are mainly used for performance test and acceptance of the cable and the intermediate joint and cannot realize online detection and monitoring.
Therefore, the traditional scheme has the problem that the operation fault detection of the intermediate joint cannot be detected and monitored on line.
SUMMERY OF THE UTILITY MODEL
Therefore, it is necessary to provide an electric discharge detector for solving the problems of the conventional scheme.
An electrical discharge detector comprising:
the light-emitting probe is used for generating feedback information;
the control device is electrically connected and in signal connection with the light-emitting probe and is used for controlling the light-emitting probe to operate;
the information processing device is used for generating fault information after analyzing and processing the feedback information;
and the information transmission device is in signal connection with the light-emitting probe and the information processing device and is used for transmitting the feedback information and outputting the fault information.
The application provides a discharge detector, discharge detector includes emitting light probe, controlling means, information processing device and information transmission device. The control device can remotely control the operation of the light-emitting probe, and then the light-emitting probe can measure the operation temperature of the intermediate joint. The information transmission device is in signal connection with the light-emitting probe and the information processing device. Therefore, the information processing device can perform operation analysis processing on the feedback information acquired by the light-emitting probe, and further obtain the fault information of the operation of the intermediate joint. The discharge detector that this embodiment provided can solve traditional scheme and have unable on-line measuring and monitoring's problem to the operation fault detection of intermediate head. In addition, the discharge detector that this embodiment provided can not influence the discharge phenomenon of intermediate head, consequently can realize the accuracy of intermediate head operation fault detection.
In one embodiment, the discharge detector further includes:
and the information storage device is electrically connected with the information processing device and is in signal connection with the information processing device and used for storing the fault information.
In one embodiment, the information transmission apparatus includes:
one end of the detection optical fiber cable is connected with the light-emitting probe;
the optical fiber connector is connected with the other end of the detection optical fiber cable;
and one end of the optical coupling optical splitter is connected with the optical fiber connector.
In one embodiment, the control device comprises:
the laser is connected with the optical coupling optical splitter and used for awakening the light-emitting probe;
and the driving circuit is connected with the laser and is used for driving the laser to act.
In one embodiment, the information processing apparatus includes:
the information receiving unit is connected with the optical coupling optical splitter and used for receiving the feedback information;
and the data calculation unit is connected with the information receiving unit and used for analyzing the feedback information and generating the fault information.
In one embodiment, the data calculation unit is further provided with:
the analog-to-digital converter is electrically connected and in signal connection with the information receiving unit and is used for converting the feedback information into a digital signal;
and the computing chip is connected with the analog-to-digital converter and used for computing the digital signal and generating the fault information.
In one embodiment, the information receiving unit includes:
the optical detector is connected with the optical coupling optical splitter;
and the preamplifier is connected with the optical detector and the data calculation unit.
In one embodiment, the discharge detector further includes:
and the display device is electrically connected and in signal connection with the information processing device.
In one embodiment, the information transmission device further comprises a port, and the port is electrically and signal-connected with the display device.
In one embodiment, the light emitting probe is a fluorescent probe.
In summary, the present application provides an electrical discharge detector, which includes the light-emitting probe, the control device, the information processing device, the information transmission device, the information storage device, and the display device. The control device can remotely control the operation of the light-emitting probe, so that the discharge detector is controlled on line to detect. The control device can control the driving circuit to provide driving current for the laser, so that the laser emits short-wave excitation light. When the light-emitting probe receives the short-wave excitation light and emits light, the feedback information can be transmitted to the optical detector, and then the preamplifier is used for amplification processing. Further, the analog-to-digital converter receives the feedback information after signal amplification and converts the feedback information into a digital signal. And the computing chip extracts and analyzes the fault information according to the feedback information and the fluorescent characteristic. The information transmission device may transmit the fault information to a terminal, or may transmit the fault information to the display device through the port, and the fault information is displayed by the display device.
Therefore, the application provides discharge detector can solve the problem that traditional scheme intermediate head inside operation fault detection exists unable on-line measuring and monitoring.
Drawings
Fig. 1 is a schematic structural diagram of an electric discharge detector according to an embodiment of the present application.
Description of reference numerals:
discharge detector 10
Luminescence probe 100
Control device 200
Laser 210
Drive circuit 220
Information processing apparatus 300
Information receiving unit 310
Light detector 311
Preamplifier 312
Data calculation unit 320
Analog-to-digital converter 321
Computing chip 322
Information transmission device 400
Detection optical fiber cable 410
Optical fiber connector 420
Optical coupling splitter 430
Information storage device 500
Display device 600
Port 20
Detailed Description
The operation fault detection for the intermediate joint in the traditional scheme cannot realize online detection and monitoring. Based on this, this application provides a discharge detector.
In order to make the objects, technical solutions and advantages of the present application more clearly understood, the following detailed description of the discharge detector of the present application is provided by embodiments and with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The numbering of the components as such, e.g., "first", "second", etc., is used herein only to distinguish the objects as described, and does not have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be considered as limiting the present application.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Referring to fig. 1, an embodiment of the present application provides an electrical discharge detector 10, which includes a light emitting probe 100, a control device 200, an information transmission device 400 and an information processing device 300.
The light emitting probe 100 is installed in a waterproof and explosion-proof housing for generating feedback information. Wherein, the waterproof and explosion-proof shell tightly wraps the middle joint. The light emitting probe 100 may be a fluorescent probe or a light emitting probe made of other materials as long as the discharge condition of the intermediate joint can be detected. The method can be selected according to actual needs, and the method is not limited in the application. Preferably, the luminescence probe 100 is a fluorescence probe. It can be understood that the intermediate connector is protected and insulated by the cross-linked polyethylene material, and when partial discharge occurs, the temperature of the partial material rises, so as to destroy the structure of the material, release special characteristic gas, cause the corresponding change of the fluorescence spectrum and intensity emitted by the light-emitting probe 100, and the detection of the partial discharge condition can be realized by measuring the change of the spectrum and intensity. The light emitting probe 100 may be made of organic or inorganic fluorescent materials, preferably a high molecular polymer fluorescent material. The feedback information is an electrical signal generated after the light emitting probe 100 emits light. The light-emitting probe 100 does not interfere with the discharge phenomenon of the intermediate connector, so that long-term online detection of the partial discharge characteristic of the cable connector can be realized, and the operation safety of a power grid is ensured.
The control device 200 is electrically connected and signal-connected to the light emitting probe 100, and is used for controlling the operation of the light emitting probe 100. The controlling of the operation of the light emitting probe 100 can be understood as that the control device 200 controls the light emitting probe 100 to start measuring temperature or stop measuring temperature. The control device 200 may control the light emitting probe 100 by wire, or may control the light emitting probe 100 by wireless, which may be specifically selected according to actual needs, and the present application is not limited thereto. The control device 200 may be a switch, and the kind of the switch may be selected according to actual needs. The control device 200 may also be a terminal device, and the terminal device may control the light-emitting probe 100 in a wired control manner or a wireless control manner. The control device 200 may be other control devices as long as the operation of the light emitting probe 100 can be controlled. The method can be selected according to actual needs, and the method is not limited in the application. The control device 200 can also remotely control the operation of the light-emitting probe 100, so as to realize online detection of the operation condition of the intermediate joint.
The information processing device 300 is electrically connected and in signal connection with the information transmission device 400, and is configured to generate fault information after analyzing and processing the feedback information. The information processing apparatus 300 may acquire feedback information of the light emitting probe 100, and further perform arithmetic processing on the feedback information to generate failure information. The information processing apparatus 300 may be a computing chip or another information processing device. The computing chip may also contain the control device 200. The type of the information processing apparatus 300 may be selected according to actual needs, and is not limited in this application. The fluorescent material in the light emitting probe 100 emits light, the lifetime and intensity of the fluorescent material change after the fluorescent material interacts with the gas generated by the partial discharge, the changed fluorescent light is guided into the information processing device 300 by the information transmission device 400, and the partial discharge condition of the cable intermediate joint is obtained by analyzing the change of the lifetime and intensity of the fluorescent material. The information processing apparatus 300 can simultaneously output the detection results, i.e., the failure information, through the information transmission apparatus 400. That is, the information processing apparatus 300 transmits the fault information to the terminal device through the information transmission apparatus 400, so that the monitoring personnel can observe the operation condition of the intermediate joint in real time.
The information transmission device 400 is electrically connected and signal-connected to the light emitting probe 100 and the information processing device 300, and is configured to transmit the feedback information and output the fault information. Specifically, the information transmission device 400 may transmit the feedback information generated by the light-emitting probe 100 to the information processing device 300 in real time. The information transmission apparatus 400 may also transmit the fault information generated by the information processing apparatus 300 to a terminal device or a display device in real time, so that a monitoring person can perform real-time monitoring. The information transmission device 400 may be a wired transmission device, such as a cable. The information transmission device 400 may also be a wireless transmission device, such as an antenna. The method can be selected according to actual needs, and the method is not limited in the application. Specifically, the information transmission device 400 may be further connected to the control device 200, and the control device 200 may transmit control information to the light-emitting probe 100, and the light-emitting probe 100 operates according to the control information.
In this embodiment, the electrical discharge apparatus 10 includes the light emitting probe 100, the control device 200, the information processing device 300, and the information transmission device 400. The control device 200 can control the operation of the light emitting probe 100, so that the light emitting probe 100 can measure the operating temperature of the intermediate joint. The information transmission device 400 is in signal connection with the light emitting probe 100 and the information processing device 300. Therefore, the information processing apparatus 300 may perform operation analysis on the feedback information acquired by the light-emitting probe 100, so as to obtain fault information of the middle joint operation. The discharge detector 10 provided by this embodiment can solve the problem that the conventional scheme cannot perform online detection and monitoring for the operation fault detection of the intermediate joint. In addition, the discharge detector 10 provided in this embodiment does not affect the discharge phenomenon of the intermediate joint, so that the accuracy of detecting the operation fault of the intermediate joint can be achieved.
Referring now to FIG. 1, in one embodiment of the present application, the electrical discharge detector 10 further includes an information storage device 500. The information storage device 500 is electrically and signal-connected to the information processing device 300, and is configured to store the failure information. The number information storage device 500 may be a memory bank, a memory, or other storage devices, and may be specifically selected according to actual needs, which is not limited in this application. The information storage device 500 may be disposed in the same device as the information processing device 300, and may be specifically selected according to actual needs, which is not limited in this application. Monitoring personnel can extract the fault information stored in the information storage device 500, so that the operating temperature of the intermediate joint can be conveniently analyzed. The information storage device 500 can further ensure the integrity of the data measured by the discharge detector 10, so that monitoring personnel can conveniently check the data.
Referring to fig. 1, in one embodiment of the present application, the information transmission device 400 includes a detection fiber optic cable 410, a fiber optic connector 420, and an optical coupling splitter 430.
One end of the detection optical fiber cable 410 is connected with the light-emitting probe 100. The detection fiber optic cable 410 mainly functions as a light transmission fiber, and a light transmission fiber or a light transmission fiber bundle can be adopted. The detection optical fiber cable 410 is made of a high-insulation material, and has no influence on the optical fiber connector 420, and the signal carrier is light, so that the detection optical fiber cable is insensitive to electromagnetic interference and has strong anti-interference capability. The optical fiber connector 420 is connected to the other end of the test fiber optic cable 410, so that the test fiber optic cable 410 can transmit the feedback information, i.e., the electrical signal, to the optical fiber connector 420. The optical coupling splitter 430 is connected to the fiber connector 420 at one end, and thus can receive the feedback information. The specifications and types of the detection fiber optic cable 410, the fiber optic connector 420, and the optical coupling splitter 430 may be selected according to actual needs, and the application is not limited thereto. Preferably, the optical coupling splitter 430 is implemented by using a fiber coupler, so as to ensure the reliability of the optical path. The optical fiber connector 420 is an FC/PC connector, and similar to the case of electrical plug-in, the detection optical fiber cable 410 and the information processing apparatus 300 are connected through the optical fiber connector 420, and can be disconnected as required.
The information transmission apparatus 400 provided in this embodiment may transmit the feedback information, i.e., the electrical signal, to the optical coupling splitter 430, and then the optical coupling splitter 430 transmits the feedback information, i.e., the electrical signal, to the information processing apparatus 300 for processing and analysis. The detection fiber optic cable 410 is of a height
Referring to fig. 1, in an embodiment of the present application, the control device 200 includes a laser 210 and a driving circuit 220.
The laser 210 is connected to the optical coupling splitter 430 for waking up the light emitting probe 100. The driving circuit 220 is connected to the laser 210, and is configured to drive the laser 210 to operate. Specifically, the driving circuit 220 may provide current driving for the laser 210, and the parameters of the driving circuit are set by the control device 200. For example, if the control device 200 is a part of a central processing unit, the parameters of the driving circuit are set by a monitoring person through the central processing unit. Further, the detection fiber optic cable 410 transmits the short wavelength excitation light to the light emitting probe 100, exciting the fluorescent material in the light emitting probe 100 to emit light. The type of the laser 210 can be selected according to actual needs, and is not limited in this application. The type of the laser 210 can be selected according to actual needs, and is not limited in this application. Preferably, the laser 210 may be a semiconductor laser or a light emitting tube with a wavelength band of 300nm to 500 nm.
Referring to fig. 1, in an embodiment of the present application, the information processing apparatus 300 includes an information receiving unit 310 and a data calculating unit 320. The information receiving unit 310 is connected to the optical coupling splitter 430, and is configured to receive the feedback information. The data calculation unit 320 is connected to the information receiving unit 310, and is configured to analyze the feedback information and generate the fault information.
Specifically, the information receiving unit 310 includes a photodetector 311 and a preamplifier 312. The photodetector 311 is connected to the optical coupling splitter 430, and is configured to receive the feedback information, i.e., an electrical signal. The type of the light detector 311 can be selected according to actual needs, and the application is not limited. Preferably, the light detector 311 employs a photodiode in the near infrared band. The preamplifier 312 is connected to the photodetector 311 and the data calculating unit 320, and specifically, the preamplifier 312 is electrically connected to the photodetector 311 and is in signal connection therewith. The photocurrent generated by the photodetector 311 is amplified by an electrical connection to the preamplifier 312, and the amplified current is then transmitted to the data computation unit 320. Preferably, the pre-amplifier 312 is a controllable variable gain amplifier.
The data calculation unit 320 includes an analog-to-digital converter 321 and a calculation chip 322. The analog-to-digital converter 321 is electrically connected and in signal connection with the information receiving unit 310, and is configured to convert the feedback information into a digital signal. I.e. converting the electrical signal into a digital signal. The computing chip 322 is connected to the analog-to-digital converter 321, and is configured to perform operation on the digital signal, implement extraction and analysis of fluorescence characteristics, and generate the fault information. The fault information is the operation fault information of the intermediate joint. The fault information can be temperature information or discharge information of the intermediate joint, and can be specifically set according to actual needs, and the method and the device are not limited in the application. The computing chip 322 may be a part of the central processing unit, or may be other computing chips, which may be specifically selected according to actual needs, and the present application is not limited thereto.
The information processing apparatus 300 provided in the present embodiment includes the information receiving unit 310 and the data calculating unit 320. The information receiving unit 310 includes the photodetector 311 and the preamplifier 312, and can receive and amplify the feedback information. The data calculation unit 320 includes the analog-to-digital converter 321 and the calculation chip 322. The analog-to-digital converter 321 converts the feedback information into a digital signal, and the fault information is generated after the digital signal is processed by the computing chip 322. The information processing apparatus 300 provided in this embodiment can output the fault information after performing accurate operation on the feedback information, and can improve the measurement accuracy of the discharge detector 10.
Referring to fig. 1, in an embodiment of the present application, a display device 600 is further disposed on the electric discharge detector 10, and the display device 600 is electrically and signal-connected to the information processing device 300. Further, the information transmission device 400 further includes a port 20, and the port 20 is electrically and signal-connected to the display device 600. The display device 600 is used for displaying the fault information so as to facilitate the inspection of monitoring personnel. The display device 600 may be a liquid crystal display device, or a digital display, or other display devices, which may be specifically selected according to actual needs, and the application is not limited thereto. Besides, the port 20 may also be connected to an external device, which may be specifically selected according to actual needs, and the application is not limited thereto.
In summary, the present application provides an electrical discharge detector 10, which includes the light emitting probe 100, the control device 200, the information processing device 300, the information transmission device 400, the information storage device 500, and the display device 600. The control device 200 can remotely control the operation of the light emitting probe 100, so as to control the discharge detector 10 to perform detection on line. The control device 200 can control the driving circuit 220 to provide a driving current for the laser 210, so that the laser 210 emits a short-wave excitation light. When the light emitting probe 100 receives the short wave excitation light and emits light, the feedback information may be transmitted to the light detector 311, and then amplified by the preamplifier 312. Further, the analog-to-digital converter 321 receives the feedback information after signal amplification, and converts the feedback information into a digital signal. The computing chip 322 extracts and analyzes the fault information according to the feedback information and the fluorescent characteristic. The information transmission device 400 may transmit the failure information to a terminal, or may transmit the failure information to the display device 600 through the port 20 and the failure information is displayed by the display device 600.
Therefore, the discharge detector 10 provided by the application can solve the problem that the operation fault detection in the middle joint in the traditional scheme cannot be detected and monitored on line. In addition, the light emitting probe 100, the control device 200, the information processing device 300, and the information transmission device 400 provided in the present application are convenient to assemble and install, so that the discharge detector 10 is convenient to carry and also convenient to install on other equipment.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. An electrical discharge detector, which can be applied to the operation fault detection of an intermediate joint, is characterized by comprising:
a light emitting probe (100) for generating feedback information;
the control device (200) is electrically connected and in signal connection with the light-emitting probe (100) and is used for controlling the operation of the light-emitting probe (100);
the information processing device (300) is used for generating fault information after analyzing and processing the feedback information;
and the information transmission device (400) is in signal connection with the light-emitting probe (100) and the information processing device (300) and is used for transmitting the feedback information and outputting the fault information.
2. The electrical discharge detector of claim 1, wherein the electrical discharge detector (10) further comprises:
and the information storage device (500) is electrically connected and in signal connection with the information processing device (300) and is used for storing the fault information.
3. The discharge detector according to claim 1, wherein the information transmission means (400) comprises:
a detection optical fiber cable (410) with one end connected with the light-emitting probe (100);
a fiber connector (420) connected to the other end of the detection fiber optic cable (410);
and an optical coupling splitter (430) having one end connected to the optical fiber connector (420).
4. The discharge detector according to claim 3, characterized in that the control device (200) comprises:
a laser (210) connected to the optical coupling splitter (430) for waking up the light emitting probe (100);
and the driving circuit (220) is connected with the laser (210) and is used for driving the laser (210) to act.
5. The discharge detector according to claim 3, characterized in that the information processing device (300) comprises:
an information receiving unit (310) connected to the optical coupling splitter (430) for receiving the feedback information;
and the data calculation unit (320) is connected with the information receiving unit (310) and is used for analyzing the feedback information and generating the fault information.
6. The discharge detector according to claim 5, wherein the data calculation unit (320) is further provided with:
an analog-to-digital converter (321) electrically and signal-connected to the information receiving unit (310) for converting the feedback information into a digital signal;
and the computing chip (322) is connected with the analog-to-digital converter (321) and is used for computing the digital signal and generating the fault information.
7. The discharge detector according to claim 5, wherein the information receiving unit (310) comprises:
a photodetector (311) connected to the optical coupling splitter (430);
a preamplifier (312) connected to the photodetector (311) and the data calculation unit (320).
8. The discharge detector according to claim 1, characterized in that the discharge detector (10) is further provided with:
and a display device (600) electrically and signal-connected to the information processing device (300).
9. The electrical discharge detector of claim 8, wherein the information transmission device (400) further comprises a port (20), the port (20) being electrically and signally connected to the display device (600).
10. The electrical discharge detector of claim 1, wherein the luminescence probe (100) is a fluorescence probe.
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| CN109613408A (en) * | 2019-02-01 | 2019-04-12 | 深圳供电局有限公司 | Discharge detector |
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| CN109613408A (en) * | 2019-02-01 | 2019-04-12 | 深圳供电局有限公司 | Discharge detector |
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